Carlo gavazzi WM23-96 PROGRAMMING User Manual
Power Quality Analyzer
Analizzatore di Qualità
della Rete
USER MANUAL
MANUALE ISTRUZIONI
WM23-96
Modular system
Tecnologia modulare
CARLO GAVAZZI
Automation Components
WM23-96: Power Quality Analyzer
Plug and play module system;
Harmonic analysis; Wmax and PFmin
storage. These are only a few among
many other functions performed by
your WM23-96. What’s more, Carlo
Gavazzi means ISO9001 certification,
a working experience of many
decades and a widespread presence
all over the world. All this because
we want our customers to have the
top service and the top products.
Welcome in the Carlo Gavazzi world
and compliments for your smart
choice. Visit our website and
evaluate our range of products:
www.carlogavazzi.com
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CARLO GAVAZZI
Automation Components
Plug and Play
Modules
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Index
4
3
CARLO GAVAZZI
WM23-96, Power Quality Analyzer
FW rev. 01
TO BEGIN WITH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .04
■ Front panel description . . . . . . . . . . . . . . . . . . . .04
■ List and description of displayed measuring pages . . . .04
PROGRAMMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . .07
■ Access to the main menu . . . . . . . . . . . . . . . . . . .07
■ Change password . . . . . . . . . . . . . . . . . . . . . . . .08
■ System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .08
■ CT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .08
■ VT ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .09
■ Dmd calculation . . . . . . . . . . . . . . . . . . . . . . . . .09
■ Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . .11
■ Total harmonic distortion . . . . . . . . . . . . . . . . . . .11
■ Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . .12
❑ Digital output 1 . . . . . . . . . . . . . . . . . . . . . . .12
❑ Alarm digital output . . . . . . . . . . . . . . . . . . . .12
❑ Digital output 2 . . . . . . . . . . . . . . . . . . . . . . .14
■ Analogue output . . . . . . . . . . . . . . . . . . . . . . . . .14
■ Setting of RS422/485 serial comm. port address .16
■ Digital filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
■ End of programming . . . . . . . . . . . . . . . . . . . . . .16
■ Reset of min. values . . . . . . . . . . . . . . . . . . . . . .17
■ Reset of max. values . . . . . . . . . . . . . . . . . . . . . .17
USEFUL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . .18
■ How to prevent key-pad programming . . . . . . . . .18
■ Retransmitted variables . . . . . . . . . . . . . . . . . . . .20
■ Alarm digital output . . . . . . . . . . . . . . . . . . . . . . .21
■ Displaying of programming menu . . . . . . . . . . . . .21
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
■ Operations preliminary to the installation . . . . . . .22
Measuring pages description
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3
Index
Main menu
2
7
■ Front panel cut-out . . . . . . . . . . . . . . . . . . . . . . .23
■ Module combination . . . . . . . . . . . . . . . . . . . . . .24
■ Available modules . . . . . . . . . . . . . . . . . . . . . . . .24
■ Digital input connections . . . . . . . . . . . . . . . . . . .27
■ Open collector output connections . . . . . . . . . . .28
■ RS422/485 port connections . . . . . . . . . . . . . . . .28
■ Elettrical connections diagrams . . . . . . . . . . . . . .30
TECHNICAL FEATURES . . . . . . . . . . . . . . . . . . . . . . . .32
We suggest you to keep the original packing in case it is
necessary to return the instrument to our Technical
Service Department. In order to achieve the best results
with your instrument, we recommend you to read this
instruction manual carefully.
HOW TO USE THE SYMBOLS
Go to the page where the previous main subject is described.
Go to the page where the next main subject is
described.
Go to the page where the subject written on
the top of the current page starts.
Go to the page where the subject written on
the top of the current page ends.
This symbol indicates a particularly important
subject or information.
This symbol indicates that more details are given
on the current subject.
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4
To begin with
Measuring pages
6
■Frontal Panel Description
Back-lighted LCD Display.
Display previous page.
Display next page.
Access to programming or
setting confirmation.
■ List and Description of Displayed
Measuring Pages
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kW∑
PF∑
kvar∑
Hz
VL1-N
VL2-N
VL3-N
V∑
kW∑
PF∑
kVA∑
Hz
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5
To begin with
VT ratio
3
Index
4
9
6
Display total harmonic distortion for the single phase
voltages expressed as %.
Display total harmonic distortion for the single phase
currents expressed as %.
MW∑ Max
PF∑ Min
Max
Min
kW dmd
kVA dmd
Serial communication
status: r=Rx; t=Tx
(only with serial comm.
module inserted)
kW dmd, Max
kVA dmd, Max
kVA L1
kVA L2
kVA L3
Max
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6
To begin with
Change password
4
8
kvar L1
kvar L2
kvar L3
W L1 Max
W L2 Max
W L3 Max
Max
W L1
W L2
W L3
PF L1 Min
PF L2 Min
PF L3 Min
Min
PF L1
PF L2
PF L3
PF ∑
A L1
A L2
A L3
Neutral current
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When the “AL” box (normally used for the alarm
indication) is active during the programming phase,
it means that the displayed value can be modified.
This rule applies to all the programming menus.
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7
Programming
Synchronization
5
Measuring pages
11
17
■Access to the main menu
To access to the programming
menus from the measuring and dis-
play phase, press the key: when
the instrument asks for the password, enter the correct PASS value
by means of the and keys;
afterwards confirm by means of the
key. If the password is correct
(when the instrument is new, the
password is 0), the instrument goes
to the main functions menu.
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S
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S
S
Access to the
main menu
The scrolling of the measuring
pages is cyclic, at the end it returns
back to the first page on the left.
Display of alarm setting (AL1 and
AL2 if both alarms have been set).
Display of the variable connected
to the alarm.
V L1-2
V L2-3
V L3-1
V ∑
Active alarm indicator.
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8
Programming
Dmd calculation
3
Index
71017
■System
This function allows the operator to
select the electrical system choosing between three-phase with neutral (3P.n) and three-phase without
neutral (3P).
Choose by means of and
the “SySTEn” function, press
to enter the menu; then, select the
desired system by means of the
and keys and confirm with
.
■CT ratio
This function allows the user to
select the value of the CT ratio.
Example: if the CT primary (current
transformer) has a current of 300A
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S
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S
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S
S
■Change Password
This function allows the operator to
choose the desired password value
(from 0 to 1000).
Choose the “CnG.PASS” function
by means of the and keys,
then press to modify PASS,
enter the desired value by means of
the and keys and confirm
the new value with the key.
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S
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S
S
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By changing the VT and CT
ratio, the energy meters are
reset.
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9
Programming
Alarm output
7
Main menu
7
13
17
■VT ratio
This function allows the user to select the
value of the VT ratio. Example: if the primary of the connected VT (voltage transformer) is of 20kV and the secondary is
100V, the VT ratio will correspond to 200
(obtained by carrying out the following
calculation: 20000/100). Choose the
“Vt.rAtio” function by means of the
and keys; to enter the menu press
, then select the desired value by
means of the and keys and
confirm it with .
In order to store
the new value, carry out the reset
(rESEt YES
).
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S
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S
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S
S
S
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1.2..
..2.1
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S
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1.2..
..2.1
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and the secondary has a current of
5A, the CT ratio corresponds to 60
(obtained by carrying out the following calculation: 300/5). Choose
the “Ct.rAtio” function by means of
the and keys; to enter the
menu press ; then select the
desired value by means of the
and keys and confirm the new
value with .
In order to store the
new value, carry out the reset
(rESEt YES
).
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S
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S
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10
Programming
Digital outputs
5
Measuring pages
71217
If for example
, you select the value “15 minutes”,
the instrument calculates the demand value and
updates the value every 15 minutes. See the diagram below.
■Synchronization
The synchronization allows the instrument, by means of the
digital inputs, to start the integration of the power dmd at
the same time as the official watthour meter. Without digital
input module, the reset and the start of the energy integra-
Where: Pc is the contractual power
t1 is the selected integration period
■Dmd calculation
This function allows the user to
select the integration time of the W,
VA and var demand value (var only
by means of RS485). To enter these
functions select “P.int t” from the
main menu by the and
keys; to enter in the menu press
. Set the desired value by
means of the and keys and
confirm the new value with .
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S
S
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1.2..
..2.1
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11
Programming
Serial port
9
VT ratio
7
15
17
ule). Every subsequent change of
status, resets and synchronizes
again the calculation of the power
dmd. It is possible to enable or disable the synchronization function
managed by the digital inputs.
Choose the “SYnC” function by
means of the and keys, to
enter the menu press ; Then set
“YES” to enable the function or
“No” to disable the synchronization
by means of the and keys
and confirm with .
■Total Harmonic Distortion
This function allows the user to
enable the FFT analysis (Fast
Fourier Transform) and the display
of the total harmonic distortion (see
also “displayed measuring pages”
on page 5). Choose the “thd” func-
tion by means of the and
keys, to enter the menu press ;
then choose if the function is to be
enabled (YES) or disabled (NO) by
means of the and keys and
confirm with .
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tion are carried out as soon as the instrument is switched
off. When the DIGITAL INPUT module is installed, the synchronization starts as soon as one of the digital inputs
changes status (contacts 2 and 3 of the digital input mod-
S
S
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S
S
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